Display Manager

No DM

skip username: /etc/systemd/system/getty@tty1.service.d/skip-username.conf

[Service]
ExecStart=
ExecStart=-/sbin/agetty -o '-p -- hiraeth' --noclear --skip-login - $TERM

sddm

autologin

默认session /etc/sddm.conf

[Theme]
Current=chili

[Autologin]
User=hiraeth
Session=dwm.desktop

免密码
You must then also be part of the nopasswdlogin group to be able to login interactively without entering your password:

groupadd -r nopasswdlogin
gpasswd -a username nopasswdlogin

SDDM goes through PAM so you must configure the SDDM configuration of PAM: /etc/pam.d/sddm

#%PAM-1.0
auth        sufficient  pam_succeed_if.so user ingroup nopasswdlogin
auth        include     system-login
-auth       optional    pam_gnome_keyring.so
-auth       optional    pam_kwallet5.so

account     include     system-login

password    include     system-login
-password   optional    pam_gnome_keyring.so    use_authtok

session     optional    pam_keyinit.so          force revoke
session     include     system-login
-session    optional    pam_gnome_keyring.so    auto_start
-session    optional    pam_kwallet5.so         auto_start

/etc/pam.d/sddm-autologin

#%PAM-1.0
auth        required    pam_env.so
auth        required    pam_faillock.so preauth
auth        required    pam_shells.so
auth        required    pam_nologin.so
auth        required    pam_permit.so
-auth       optional    pam_gnome_keyring.so
-auth       optional    pam_kwallet5.so
account     include     system-local-login
password    include     system-local-login
session     include     system-local-login
-session    optional    pam_gnome_keyring.so auto_start
-session    optional    pam_kwallet5.so auto_start

files

/etc/zsh/zshenv export ERRFILE="$XDG_CACHE_HOME/X11/xsession-errors"